> With regard to crown bottle caps, I have wondered if there was a
> technological evolution of the liners? Although most have had cork liners
> during  my
> lifetime, plastic liners began popping up recently and no doubt changes
> will
> continue in the future. This makes me wonder if they always had cork
> liners.  Does
> anyone know?
>
> Ron May
> Legacy 106, Inc.
>

The original pattent was held by the Crown Cork and Seal company from
Baltimore Maryland - the pattent was issued to William Painter (468226)
and used cork.

Silas Hurry
HSMC